Use new spago, purescript-overlay

flake.nix

@@ -1,29 +1,28 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-utils.url = "github:numtide/flake-utils";
-    easy-purescript-nix = {
-      url = "github:justinwoo/easy-purescript-nix";
-      flake = false;
-    };
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+    flake-utils.url  = "github:numtide/flake-utils";
+    purescript-overlay.url = "github:thomashoneyman/purescript-overlay";
+    purescript-overlay.inputs.nixpkgs.follows = "nixpkgs";
   };
-  outputs = { self, nixpkgs, flake-utils, easy-purescript-nix }:
+
+  outputs = { self, nixpkgs, flake-utils, purescript-overlay }:
     flake-utils.lib.eachDefaultSystem (system:
       let
-        pkgs = nixpkgs.legacyPackages.${system};
-        easy-ps = import easy-purescript-nix { inherit pkgs; };
-      in
-      {
-        devShell = pkgs.mkShell {
+        overlays = [ purescript-overlay.overlays.default ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+      in {
+        devShells.default = pkgs.mkShell {
           buildInputs = [
-            easy-ps.purs
-            easy-ps.spago
-            easy-ps.purs-tidy
-            easy-ps.purescript-language-server
-            pkgs.nodejs
-            pkgs.dhall-lsp-server
-            pkgs.esbuild
+            pkgs.nodejs_18
+            pkgs.purs
+            pkgs.spago-unstable
+            pkgs.purs-tidy-bin.purs-tidy-0_10_0
+            pkgs.purs-backend-es
           ];
         };
-      });
+      }
+    );
 }

spago.yaml

@@ -0,0 +1,32 @@
+package:
+  dependencies:
+    - arrays
+    - effect
+    - datetime
+    - functions
+    - js-date
+    - maybe
+    - nullable
+    - prelude
+    - tuples
+    - unfoldable
+    - unsafe-coerce
+  name: web-intl
+  test:
+    dependencies:
+      - assert
+      - console
+      - debug
+      - effect
+      - foldable-traversable
+      - functions
+      - js-date
+      - prelude
+      - record
+      - strings
+      - unsafe-coerce
+    main: Test.Main
+workspace:
+  extra_packages: {}
+  package_set:
+    registry: 29.3.0